<template>
  <div class="login_container">
    <div class="login_box">
      <!-- 头像区域 -->
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <!-- 登录表单区域 -->
        <el-form ref="loginFormRef" :model="loginForm" :rules="loginFormRules" label-width="0px" class="login_form">
          <!-- 用户名 -->
          <el-form-item prop="username">
            <el-input v-model="loginForm.username" prefix-icon="iconfont icon-user"></el-input>
          </el-form-item>
          <!-- 密码 -->
          <el-form-item prop="password">
            <el-input v-model="loginForm.password" prefix-icon="iconfont icon-3702mima" type="password"></el-input>
          </el-form-item>
          <!-- 按钮区域 -->
          <el-form-item class="btns">
            <el-button type="primary" @click="login">登录</el-button>
            <el-button type="info" @click="resetLoginForm">重置</el-button>
          </el-form-item>
        </el-form>
      </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      // 登录表单的数据绑定对象
      loginForm: {
        username: 'admin',
        password: '123456',
      },
      // 表单验证规则对象
      loginFormRules: {
        // 验证用户名是否合法
        username: [{ required: true, message: '请输入登录名称', trigger: 'blur' },{ min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' },],
        // 验证密码是否合法
        password: [
          { required: true, message: '请输入登录密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
      }
    };
  },
  methods: {
    // 点击重置按钮，重置登录表单
    resetLoginForm() {
      // console.log(this)
      this.$refs.loginFormRef.resetFields();
    },
    login() {
      this.$refs.loginFormRef.validate( async (valid) => {
        // console.log(valid);
        if (!valid) return;
        const {data: res} = await this.$http.post("login", this.loginForm);
        // console.log(res);
        if (res.meta.status !== 200) return this.$message.error("登录失败");
        this.$message.success("登陆成功");
        window.sessionStorage.setItem("token", res.data.token);
        this.$router.push('./home');
      })
    },
  },
};
</script>

<style lang="less" scoped>
.login_container {
  background-color: #2b4b6b;
  height: 100%;
}
.login_box {
  width: 450px;
  height: 300px;background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}
.avatar_box {
  height: 130px;
  width: 130px;
  border: 1px solid #eee;
  border-radius: 50%;
  padding: 10px;
  box-shadow: 0 0 10px #ddd;
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  background-color: #fff;
  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}
.login_form {
  position: absolute;
  bottom: 0;
  width: 100%;
  padding: 0 20px;
  box-sizing: border-box;
}
.btns {
  display: flex;
  justify-content: flex-end;
}
</style>